Means for the surface dressing of materials, in particular of hairy materials



Patented Mar. 15, 1932 warren stares PATENT emce ADOLF SIN DERIVEANN OF VIENNA, AUSTRIA IVIEAN S FOR THE SURFACE DRESSING OF MATERIALS, IN PARTICULAR O'F HAIRY MATERIALS No Drawing. Application filed February 5, 1931, Serial No. 513,781, and in Austria January 12, 1931.

This invention relates to means for dress ing or finishing the surface of materials, in particular of pilous or hairy materials and fabrics. For this purpose, for example in the manufacturing of certain kinds of hair felt or woollen hats, it has been known to subject the material in question to the action of emery paper or glass paper stretched upon rotating discs, which has the effect of imio parting to the hair felt hat the appearance of cloth, that is to say of woven material. A truly smooth surface could not, however, be obtained by this method, since the granular structure of the surface of the grinding strip l5 or disc employed not only ground down the surface of the material treated, but at the same time triturated and roughened the same.

In accordance with the present invention a material or means is employed for this pur- 1o pose which consists of any suitable basic material coated with particles or flakes of the thinnest possible sheet glass. Substantially fiat and exceedingly thin glass flakes are preferably attached by means of an adhesive :5 substance, in the manner of scales, to a foundation material, which latter may consist for the present purpose equally well of paper, cloth, or leather strips or sheets, or of discs of any desired or suitable material, such as Wood, earthenware, or the like. 7

The manufacturing process consists in first producing glass of the highest possible degree of thinness (a hundredth to a two-hundredth of a millimetre) either by blowing, or by Lil drawing, rolling, or any other suitable method, and then pounding this glass up into small fragments or flakes. The foundation material, e. a paper strip, is then coated with an adhesive onto which the glass flakes are then spread and smoothed down. In this manner a polishing agent is obtained which is substantially similar to the usual glass- ,7: I pa er sand-paper but which has not a granular but a flaky or scaly surface. These strips are then worked up and employed in the same manner as the ordinary glass-paper. The difference in the action upon the material to be smoothed (e. g. hair felt hat) con sists in that the fibres, hairs, or the like pro, truding from the surface of the material concerned are shaved off by the razor-like action of the sharp edges of the glass flakes, and the material is at the same time smoothed down by the substantially flat surface of the flakes,

while in the case of the hitherto employed emery-paper or glass-paper (so-called sandpaper) the surface of the material is'roughened and torn by the granular surface of these agents. With the article provided by the, present invention the surface of hairymate 6o rials is smoothed by the shaving off of the finest particles,'while with the above-mentioned known agents the surface is removed in minute particles by a process of scratch:- ing or scarification. The surface treated is consequently different in appearance in the two cases. With the described agent it becomes possible'to dress hairy materials, such as the material of hair felt or woolen hats, so. that a smooth cloth-like surface is obtained which is free of rubbed-in dust.

It will be obvious that,if desired, the surface of other materials, such as wood, artificial substances, or the like, can be treated or worked up by means of the described agent.

I claim 1. Means for the surface dressing of materials, in particular of hairy materials, com? prising a foundation material and flakes of so the thinnest possible sheet glass attached to the said foundation material.

2. Means for the surface dressing of mate- 7 rials, in particular of hairy materials, comprising afoundation material and flakes of blown glass of a hundredth to a two-hundredth of a millimetre thickness attached to the said foundation material.

3. Means for the surface dressing of mate; rials, in particular of hairy materials, comprising a foundation material and flakes of the thinnest possible sheet glass laid flat upon and stuck to the said foundation material.

4. Means for the surface dressing of mate- 0 rials, in particular of hairy materials, comprisinga foundation of paper, fabric, Wood, leather, earthenware, or the like and flakes of the thinnest possible sheet glass laid fiat upon and stuck to the said foundation material.

The foregoing specification signed at Vienna, Austria, this 24th day of January, 1931.

ADOLF SIN DERMANN. 

